With an appropriate sensor (gyro?) on a dual axis (roll, yaw) you can bias the center point to cause the aircraft to turn at your discretion. Dale Botkin wrote: > Well, yeah, but... if it's a wing leveler, you probably don't *want* it > to see a coordinated turn, do you? That might make changing directions a > little difficult. I thouht the original goal was to keep the wings level > to prevent uncoordinated (and one would assume unwanted) turns. > > Dale -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu